Foundation-bolt



. PEELLE.

ATION BOLT. APP FILED JAN-30,1919- 1,381,428. Patented June 14, 1921.

UNITED STATES PATENT OFFICE.

ROBERT S. PEELLE, 0F HOLLIS, NEW YORK, ASSIGNOB TO THE PEELLE COIPANY, A GOBPORATION O F NEW- YORK.

FOUNDATION-BOLT.

Specification of Letters Patent. Patented J 11119 14, 1921,

Application filed-January 80, 1919.- Serial No; 273,884.

To all whom it may concern: 7

Be it known that I, Ronnn'r S. Pnnmin, a

citizen ofthe United States, residing at thereof.

My invention relates to foundation bolts, andmore particularly to a type thereofparticularly adapted for use in securing the guide rails for elevator doors to the masonry adjacent the door opemngs.

Heretofore it has been the common practice to Secure these guide rails by means of bolts consistin of an expansible sleeve Seated in a dril hole in the masonry and having slidably mounted therein a wedge nut adapted to be engaged by a screw bolt passed through the guide rail, the tightening ofthe bolt expanding the sleeve so as to firmly embed it in the masonry. While this type of bolt has given satisfactoryresults heretofore, it has always been more or less unsatisfactory because of a necessity for great accuracy in the positioning of the olt openings in the guide rail, in order to permit the screw bolt to engage the threadsof the nut in a manner to prevent stripping of the bolt. Furthermore, in attempting to pick up the nut, there was always a likelihood that it would be the sleeve into the drill hole in the masonry, thus necessitating the taking down of the rail in order to replace the nut. The rails for elevator doors are usually of a length requiring the use of a number ofbolts, so that inapcuracy in the positioning of one bolt opening therein, may be a source of great annoyance and a considerable loss of time in the installation of a door equipment.

With these conditions in mind, I have produced afoundation bolt wherein a wedge nut may be dis used with and wherein the bolt may be eflected in relation to the sleeve, in a manner to compensate for slight irregularities in the bolt openings in the rail, thus greatly facilitating the rails, without a. loss of the necessary pushed from within the installation of alinement of one section thereof with the adjoining sections.

A further advantage of a boltmade in accordance with my invention, is that there is no possibility of such a disarrangement of the bolt structure as would necessitate the taking down of a rail in order to reassemble the bolt. With a bolt made in accordance -with my invention, if desired, a lock bolt may be employed to prevent possible loosening of the rail, as a result of vibration.

he invention consists primarily in a foundation bolt embod g therein an expansible sleeve adap to be seated in a drill hole, a screw bolt having a tapered head slidably mounted in said sleeve, with the screw threaded end thereof projecting beyond the end of said sleeve, and a nut cooperating with said screw'threaded end; and in such other novel features of construction and combination of parts as are hereinafter set forth and described, and more particularly pointedout in the claim hereto appended.

, Referring to the drawings,

)Figure 1 is a cross sectional view of a bolt embodying my invention, before the expansible sleeve has been forced into the masonry of the wall by the tightening of the nutyand I .Fig. 9- is an elevation thereof, after the ex ansionof the sleeve. ike letters refer to like said views.

In the accompanying drawings, I have shown at ca portion of a masonry wall having an opening a drilled therein and a rail 7) for an elevator door secured in place thereupon by means of bolts made in accordparts in both of ance with myinvention. Fi 1 of the draw- 1 lngs is a section upon a vertlcal plane, while base toward the end of the sleeve; the cen- .shaped head formed as a truncated polyhedron, corresponding in contour, and adapted to cooperate, with the walls of the por tion a of the sleeve 0. The length of said bolt (13 is such as to have the screw-threaded end d thereof project for a considerable distance, beyond the opposite end of the sleeve 0. The diameter of the bolt d is such as to not only afford a free sliding fit thereof within the portion 0 of the bore of said sleeve, but also to afford sufficient space between the bolt and portion 0 to permit the bolt to be deflected in any direction, so that it may be'adjusted with relation to its bolt opening in the rail b, to an extent to compensate for an absence of exactitude in the positioning of said opening. In fact when using a bolt having a wedge-shaped head of the character described, the screw-threaded end 03 of said bolt may be bent slightly out' of true to adjust it to the bolt opening, without in any way modifying the operative effect of the head (1' of the bolt 03 in relation to said sleeve 0.

Cooperating with the screw-threaded end.

(Z of the bolt 03, is an ordinary nut e by means of which movement of the bolt (1 longitudinally of the sleeve 0, may be effected, while at the same time the rail 6 is secured in relation to the wall a.

When using bolts made in accordance with my invention, the openings a are drilled in the wall a tothe desired depth, and in the desired locations. The bolt d is then slipped through the sleeve 0 with the head 03' thereof loosely fitted in the portion 0 of the bore of said sleeve, and a sleeve with the bolt therein is inserted'in its opening a with the outer end of the sleeve substantiall flush with the face of the wall a.

hen the bolts are thus positioned, in the openings a, the screw-threaded end a! of each bolt will project beyond the-wall a in a manner to permit the rail 12 to be brought against the wall, openings approximating the spacing of the various openings a having been drilled in said rail.

If it be found that any, opening the rail is not positioned with absolute accuracy in relation to the rotruding end of the bolt d, the bolt may moved about in its sleeve 0 until its passage throu h the opening in said rail is secured. As eretofore stated, if necessary, the end d of the bolt may be bent slightly, if desired.

out departing When the various bolt ends d have been passed through the openings in therail, a

nut e is applied to each of said ends and tightened up by means of a wrench, the

tightening of the bolt having the two-fold e ect of rawing the bolt longitudinally of the sleeve 0, while holding the rail 12 against the exposed end of the sleeve 0 and the wall a.

Longitudinal movement of the bolt 03 causes the head (2' thereof, through its engagement with the portion 0' of the bore, to force the opposite sides of the sleeve outwardly into the masonry of the wall in a manner to firmly lock the sleeve in the open ing a and thus prevent displacement of the .bolt d and of the rail b.

It will be observed that since the screwthreaded end of the bolt is exposed exteriorly of the wall, the nut e may be applied thereto without any'likelihood of the strip ping of the threads of the bolt througha failure to properly pick up the threads, and that there can be no such disarrangement of the cooperatingparts as would necessitate the removal ofa rail..

After the bolts have been drawn longitudinally of the sleeve 0 sufliciently to insure the desired locking of said sleeve in posi tion in the opening a, the end d of the bolt extending ,beyond the nut 6, may, if desired, be cut off and upset to lock the nut upon the bolt, or, if desired, a lock nut may be mounted upon the bolt d.

By using a polyhedron-shaped head upon the bolt d, I limit the movement of the bolt 03 in the sleeve 0 to a movement longitudi-i nally of said sleeve, and thus permit the} desired force to be applied to the nut e to expand the inner end of the sleeve 0 to the desired extent.

It is not my intention tolimit the invention to the precise details of construction shown in the accompanying drawings, it'being apparent that such ma be varied withfrom the spirit and scope of the invention. I

Having described the invention, what I claim as new and desire to have protected by Letters Patent, is

A foundation bolt embod ing therein a sleeve adapted to' be seated ina drill hole,

the bore of said sleeve at one end thereof being in the form of a truncated polyhedron with its base toward. the end of the sleeve, at the other end thereof -being cylindrical and enlar d, and the central portion connecting sald end portions being cylindrical, and said sleeve adjacent said portion formed as a polyhedron being slotted, a screw bolt having a loose bearing in said central cylindrical portion of the bore of said sleeve, whereby said bolt may be moved radially off said sleeve, said bolt having a wedge shaped head in the form of a truncated I pelyhedron conferining in contour with the 1919, in the presence of lawn subscribing witportion of said sleeve adjacent said slots, nesses. and a screw-threaded end projecting beyond the end of said sleeve, and a. nut coiiperat- 5 in with said screw-threaded end. 7 Witnesses: I

v n witness whereof I have hereunto aflixed F. T. WENTWORTH, my signature, this 16th day of January, A. E. Rmrron'.

ROBERT s. PEELLE. 

